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use strict;
use warnings;
use Test::More tests => 8;
use Parallel::ForkManager;
my $pm = Parallel::ForkManager->new(4);
for(1..3) {
$pm->start and next;
sleep $_;
$pm->finish;
}
my $nbr = $pm->running_procs;
my @pids = $pm->running_procs;
is $pm->max_procs => 4, 'max procs is 4';
is $nbr => 3, '3 children';
is scalar(@pids) => 3, '3 children';
# on Windows they'll be negative
like $_ => qr/^-?\d+$/, "looks like a pid" for @pids;
$pm->wait_for_available_procs(3);
is $pm->running_procs => 1, 'only one process left';
$pm->wait_all_children;
is $pm->running_procs => 0, "all done";
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